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8th Gr Sci Ch 4 Test

8th Grade Science Chapter 4 Test Review

QuestionAnswer
Even though God cursed the earth because of man's sin, and parts are unfriendly to life, how can we tell that God designed the earth to sustain life? Every aspect is designed perfectly
What three things do most kinds of life need? water, oxygen, sunlight
How does the tilt of the earth's axis improve conditions for life on earth? The tilt creates more suitable temperatures by hiting the whole earth with sunlight rather than just one part; Temperate
How does water help distribute heat more evenly around the world? When water heats up it circulates
Name three features of the atmosphere that support life on Earth. It's transparent, offers protection/physical shield, perfect amount of oxygen (no toxic gases)
What might happen to the earth if it did not have a strong magnetic field? Dangerous energy radiation particles from space could reach it's surface, harming or killing living things
What do you think would happen to the habitability zone if the sun were much smaller? It would shrink and we would freeze
If the earth orbited a smaller sun at its current distance, what would the earth be like? Our days would be shorter and would freeze
What could happen if the earth were in the center of the galaxy or in one of its spiral arms? Comet collisions, dangerous radiation
If God had created the earth with an opaque atmosphere, would Genesis 1:14 make any sense? Explain. No because it would always be dark (no sun, moon, stars)
Why were James Hutton and Charles Lyell wrong when they applied the principle of uniformity in order to explain events in the distant past? They assumed that the speed at which the earth has been changing now, has always been this speed
What term identifies a viewpoint based on the belief in a very old Earth? deep time view
Why is it possible to even make predictions in science? the principle of uniformity says that the universe is orderly and predictable
Medical x-rays are to doctors as ____________ are to geologists. seismic waves
How was the Moho Discontinuity discovered? They found that there was a jump in the speed of seismic waves at particular depths below the earth's surface
What special protective feature do geologists believe originates deep within the earth and most likely within the core? Iron that makes a magnetic field
Why are coal, petroleum and natural gas considered non-renewable resources? They cannot be replenished in our lifetime
What do we call all efforts to identify, obtain, and use natural resources wisely? resource management
What can happen to natural resources needed by living things that makes them unfit for use? People can over use our natural resources
the rocky surface of the earth lithosphere
the mass of gases that surround the earth atmosphere
the study of the earth geology
The theory that once the continents were one big land mass that were broken up into pieces and drifted apart The plate tectonic theory
Any raw material that we use from our environment natural resources
Resources that get used up and can not be replenished Non renewable resources
Resources that can be replenished easily and have an unlimited supply Renewable resources
The center of the earth the core
Created by: bgpalmers
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